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EMPLOYEE BENEFIT PLANS (Details 3) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Significant Unobservable Inputs (Level 3) |  |  |
Actual return (loss) on plan assets: |  |  |
Balance at the end of the period | $ 8.6 | $ 8.6 |
Recurring basis | Significant Unobservable Inputs (Level 3) |  |  |
Changes in plan assets |  |  |
Balance at the beginning of the period | 8.6 | 7.7 |
Actual return (loss) on plan assets: |  |  |
Assets held at the reporting date | 1.7 | 1.0 |
Assets sold during the period | 0.1 | 0.2 |
Purchases, sales and settlements, net | (1.8) | (0.3) |
Balance at the end of the period | 8.6 | 8.6 |
Recurring basis | Significant Unobservable Inputs (Level 3) | Real Estate |  |  |
Changes in plan assets |  |  |
Balance at the beginning of the period | 7.1 | 6.3 |
Actual return (loss) on plan assets: |  |  |
Assets held at the reporting date | 1.6 | 0.9 |
Assets sold during the period | (0.2) | 0.2 |
Purchases, sales and settlements, net | (0.7) | (0.3) |
Balance at the end of the period | 7.8 | 7.1 |
Recurring basis | Significant Unobservable Inputs (Level 3) | Private Equity |  |  |
Changes in plan assets |  |  |
Balance at the beginning of the period | 0.8 | 0.9 |
Actual return (loss) on plan assets: |  |  |
Assets held at the reporting date | 0.1 | 0.1 |
Assets sold during the period | 0.3 |  |
Purchases, sales and settlements, net | (0.4) | (0.2) |
Balance at the end of the period | 0.8 | 0.8 |
Recurring basis | Significant Unobservable Inputs (Level 3) | Insurance |  |  |
Changes in plan assets |  |  |
Balance at the beginning of the period | 0.7 | 0.5 |
Actual return (loss) on plan assets: |  |  |
Purchases, sales and settlements, net | (0.7) | 0.2 |
Balance at the end of the period |  | 0.7 |
Pension Benefits |  |  |
Changes in plan assets |  |  |
Balance at the beginning of the period | 126.0 | 137.9 |
Actual return (loss) on plan assets: |  |  |
Balance at the end of the period | 149.2 | 126.0 | 137.9
Employer contribution | 13.3 | 4.4 | 5.9
Pension Benefits | Significant Unobservable Inputs (Level 3) | Real Estate |  |  |
Actual return (loss) on plan assets: |  |  |
Balance at the end of the period | 7.8 | 7.1 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Private Equity |  |  |
Actual return (loss) on plan assets: |  |  |
Balance at the end of the period | 0.8 | 0.8 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Insurance |  |  |
Actual return (loss) on plan assets: |  |  |
Balance at the end of the period |  | $ 0.7 |

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- Definition Actual return on plan assets, separately identifying the amount related to assets sold during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 + Details
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- Definition Actual return on plan assets, separately identifying the amount related to assets still held at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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